Sipper-cover



FIG. 1 is a perspective view of the sipper-cover showing my new design.

FIG. 2 is a front view thereof, the rear view being a mirror image.

FIG. 3 is a left side view thereof, the right side view being a mirror image.

FIG. 4 is a top plan view thereof, the bottom view being a mirror image; and,

FIG. 5 is a perspective view thereof, the broken lines showing a cup are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a sipper-cover, as shown and described. 